Yeah, what Tyler said.
To extend on the nameservers, once you buy your domain and go into your CP (on the site you bought your domain, for example, GoDaddy) and you would have to find a place where it says "Set Nameservers" or something like that. Go there and:
Name Server 1: NS1.X10HOSTING.COM
Name Server 2: NS2.X10HOSTING.COM
There will probably be an option for a third nameserver but you can leave that blank.